On The Practice of Bodily Mortification
Balaam saddled his ass and went to meet Balak, but his heart was not right with God, and therefore the Angel of the Lord stood in the way, with a sword in his hand to kill him, had not the ass three times turned out of the way as though she were restive; whereat Balaam smote her with his staff, until at last she fell down beneath him, and her mouth being miraculously opened, she said unto him, “What have I done unto thee that thou hast smitten me these three times?” Then Balaam’s eyes were opened, and he saw the Angel, who said to him, “Wherefore hast thou smitten thine ass? unless she had turned from me surely now I had slain thee, and saved her alive.”
Then Balaam said to the Angel of the Lord, “I have sinned, for I knew not that thou stoodest in the way against me.” 120120 Numb. xxii. Do you see, my daughter, it was Balaam who did wrong, but he beat the poor ass, who was not to blame. It is often so with us. A woman’s husband or child is ill, and forthwith she has recourse to fasting, the discipline, and hair shirt, even as David did on a like occasion. 121121 2 Sam. xii. 16. But, dear friend, you are smiting the ass! you afflict your body, which can do nothing when God stands before you with His sword 222 unsheathed.
Rather correct your heart, which idolises your husband, and has indulged your child, letting him give way to pride, vanity, and ambition. Or, again, a man falls often into fleshly sins, and the voice of conscience stands before him in the way, rousing him to a holy fear. Then recollecting himself, he begins to abuse his flesh for betraying him, he deals out strict fasts, severe discipline, and the like, to it, and meanwhile the poor flesh might cry out like Balaam’s ass, Why smitest thou me?
It is you yourself, O my soul, that are guilty. Wherefore do you force me into evil, using my eyes, and hands, and lips for unholy purposes, and tormenting me with evil imaginations? Do you entertain only good thoughts, and I shall feel no unholy impulses, frequent none save pious people, and I shall not be kindled with guilty fire. You cast me yourself into the flames, and bid me not to burn! you fill my eyes with smoke, and wonder that they are inflamed! But God bids you deal chiefly with your heart, for that is the chief offender.
When a man suffers from the itch, there is less need to bathe him, and cleanse the surface, than to purify his blood; and so, in order to purge our vices, no doubt it is well to mortify the flesh, but above all it is necessary to purify the affections and renew the heart. Make it a rule then never to 223 undertake any bodily austerities without the advice of your spiritual guide.
Source: Introduction to the Devout Life (CCEL)